Text 57354, 73 rader
Skriven 2009-10-07 10:00:15 av Alan Zisman (1:123/789.0)
  Kommentar till text 57351 av ED VANCE (1:123/140)
Ärende: Digital Cameras
=======================
ED VANCE -> JEFF GUERDAT wrote:
 EV> Jeff,

 EV> I think it was you over a year ago that said that 5X Optical would be
 EV> the preferred Minimum Optical specification to consider when buying a
 EV> Digital Camera.

 EV> A couple of months ago I went into a local camera store and looked
 EV> around some.

 EV> I asked about the 5X Optical setting but the clerk wasn't sure about why
 EV> that was necessary. I told him that I had heard about that some time
 EV> ago.

 EV> The clerk showed me a camera that came with a 7X optical setting that
 EV> cost a little more than US$200.00.

 EV> Most of the Digital Cameras I see advertised come with 3X or 4X Optical,
 EV> a few 5X models show up in advertisements too.

 EV> The only ones I see for sale with an Optical setting of Greater Than 5X
 EV> are the higher priced Removeable Lens Digital Cameras, and I am not
 EV> interested in paying that price for a Digital Camera. ;-)

 EV> Probably for what picture taking I would do a 3X camera would do. ;-)

 EV> Occasionally I have taken pictures with my 35MM (film) Olympus OM-10
 EV> using a 3X Teleconvertor and a Zoom Lens set to Maximum (205MM).

 EV> Of course pictures taken with that setting were taken with the camera on
 EV> a tripod.

 EV> I would guess a 5X Optical camera pushed all the way to 5X would be
 EV> about the same as a 175MM setting on a 35MM camera, would that be right?

 EV> What do You (or Others) think about what Optical setting I should think
 EV> about, IF I were to buy one soon?


Ed- Jeff is no longer posting on WIN95...

1) You're right- 3X optical zooms are most common on 'point and shoot' models.
With a little poking around, however, you will find larger optical zooms- and
not just on D-SLR models. There are quite a few 'ultra zoom' models from nearly
all the major manufacturers, with optical zooms up to the 26X (!) on Olympus's
SP-590... ultrazooms are relatively large- not as large as D-SLRs, but pretty
big.

2) A relatively new development... what some are calling compact-zooms:
compact-sized cameras with larger than typical zooms of 7X to 10X (or so), at
relatively low prices... over the summer, when I was travelling, I had loan of
a 7X Olympus Stylus 7000 and quite liked it. (I wrote about it a couple of
weeks ago, online at: http://www.zisman.ca/Articles/2009/BIV1040.html)

3) It seemed when you commented that a 5X zoom is equivalent to a 175mm lens on
a 35mm camera that you were multiplying 5 times 35... that might be right, if
the unzoomed lens on the camera is equivalent to a 35mm lens on a 35mm camera,
but not if the 35 is the film-size... there are a couple of problems comparing
digital camera zoom lens to 35 mm equivalents- for instance, the 7X zoom on the
Olympus Stylus 7000 is equivalent to a 37 to 260 mm zoom, while the 7X zoom on
the more recent Olympus Stylus 7010 is equivalent to a 28 to 196 mm zoom... the
7010's lens offers wider angles but doesn't zoom so high.

4) From your discussion of what you've liked to do with your film camera, it
sounds like one of the compact zooms would be the best fit.
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